<div class="main">
  <p class="f-psw">忘记密码</p>
  <form action="#" method="post">
    <div class="pn">
      <img src="assets/images/shoujihao.jpg" alt="手机号">
      <p>手机号</p>
      <input type="text" required oninput = "value=value.replace(/[^\d]/g,'')" [(ngModel)]="telephone" name="telephone"> 
    </div>
    <input type="submit" value="下一步" class="btn-next" (click)=next()>
  </form>
</div>